The five health and fitness care employees have been definitively seronegative versus H5 in all assays, meaning they weren't contaminated with H5. This analyze demonstrates a pattern of weakening binding affinity of existing antibodies versus H5 isolates after a while, indicating that the H5N1 virus is evolving immune escape of https://www.dailypioneer.com/2019/top-stories/pak-to-earn-rs-258-cr-per-annum-from-kartarpur-pilgrims.html?utm_source=vuukle&utm_medium=talk_of_town